<!DOCTYPE html>
<html lang="zh-CN">
<head>
  <meta charset="UTF-8">
  <title>表单基本结构</title>
</head>
<body>
  <form action="https://wwww.baidu.com/s" target="_blank">
    <input type="text" name="wd">
    <button>去百度搜索</button>
  </form>
  <hr>
  <form action="https://search.jd.com/search" target="_blank">
    <input type="text" name="keyword">
    <button>去京东搜索</button>
  </form>
</body>
</html>